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Gender determination using barr bodies from teeth exposed to high temperatures
A Vikram Simha Reddy1, A Ravi Prakash1, Lakshmi Keerthana Killampalli1
1Department of Oral and Maxillofacial Pathology, G Pulla Reddy Dental College and Hospital, Kurnool, Andhra Pradesh, India.
Journal of Forensic Dental Sciences
|June 7, 2017
Summary
Dental pulp can determine gender even after high-temperature exposure. Female teeth show Barr bodies up to 400°C, while male teeth do not, aiding forensic identification.
Area of Science:
- Forensic Odontology
- Human Identification
- Sex Determination
Background:
- Gender determination is crucial in forensic identification.
- Dental pulp is protected by teeth, aiding analysis after high-temperature events.
- Teeth are valuable for identification when other tissues are compromised.
Purpose of the Study:
- To determine gender from dental pulp of teeth exposed to high temperatures.
- Investigate the viability of Barr body analysis in heat-damaged pulp.
Main Methods:
- Sixty teeth (30 male, 30 female) were subjected to temperatures from 37°C to 1000°C.
- Dental pulp was extracted, processed, stained, and analyzed for Barr bodies.
- Descriptive statistical analysis was employed.
Main Results:
- Barr bodies were present in female dental pulp up to 400°C.
- Male dental pulp showed no Barr bodies at any tested temperature.
- Cellularity decreased with heat, but Barr body count remained stable in positive samples.
Conclusions:
- Dental pulp is a viable source for gender determination in forensic cases.
- Barr body analysis in dental pulp is effective even after significant thermal insult.
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